Abstract: According to an aspect, a display device includes an array substrate, a counter substrate, a liquid crystal layer between the array substrate and the counter substrate, and a light source. The array substrate includes, signal lines, scan lines, and switching elements. Each switching element includes a semiconductor layer that has a first side surface located on a side closer to the light source and a second side surface on an opposite side to the first side surface. The semiconductor layer has a first width and a second width, the first width being a width in a direction intersecting an incident direction in which light is incident from the light source, the second width being a width in a direction parallel to the incident direction, the first width being smaller than the second width. A source electrode coupled to the signal line covers the first side surface of the semiconductor layer.

Abstract: A detection device includes: a substrate; a switching element that includes a source electrode, a drain electrode, a semiconductor film, and a gate electrode; a first insulating film disposed between the gate electrode and the semiconductor film; a second insulating film that is disposed on the first insulating film, and includes a first contact hole overlapping a portion of the semiconductor film in plan view; and a sensor element electrically coupled to the drain electrode, wherein a first electrode, which is one electrode of the source electrode and the drain electrode, overlaps the gate electrode in plan view and is electrically coupled to the semiconductor film in the first contact hole, and in the first contact hole, the first electrode and the semiconductor film face a first partial surface on a side surface of the first contact hole while being separated from the first partial surface.

Abstract: An electro-optic device includes a pixel section and a terminal section through which a semiconductor circuit or a wiring board is mounted around the pixel section. The terminal section has a multilayer structure including a terminal connection wire including an uppermost layer containing titanium, a terminal interlayer made of an electroconductive material capable of being wet-etched, and a terminal transparent electroconductive film in that order from below.

Abstract: An electro-optic device includes a pixel section and a terminal section through which a semiconductor circuit or a wiring board is mounted around the pixel section. The terminal section has a multilayer structure including a terminal connection wire including an uppermost layer containing titanium, a terminal interlayer made of an electroconductive material capable of being wet-etched, and a terminal transparent electroconductive film in that order from below.